The marketing for the new season seems to be playing up the Sontaran design's similarities to the Time Warrior version. Kind of reminds me of the "All the Daleks!" push for "Asylum of the Daleks", the Mondasian/Tenth Planet Cybermen in Capaldi's season finale (along with the return of Simm's Master) etc. Trying to bring some of the fans of classic Who in I guess.